Nikesh Arora, CEO of Palo Alto Networks and former SoftBank executive, has been appointed to Uber's board amid an executive shakeup. His addition signals Uber's focus on advancing autonomous mobility and transforming urban transportation. The leadership changes include the departure of delivery head Pierre-Dimitri Gore-Coty and the promotion of Andrew Macdonald to president and COO. Uber CEO Dara Khosrowshahi praised Arora as a strategic leader, highlighting the company's commitment to innovation and competition in the robotaxi industry.